Hlavní oblasti

Oblast zaměření: Textilie
Komise : CEN/TC 248 (Textiles and textile products)
Původce: CEN
K připomínkám do: 9.04.2019
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This document specifies a method, by determining the nitrogen content, to calculate the proportion of each component, after the removal of non-fibrous matter, in textiles made of mixtures of

—    jute

with animal fibres.

The animal-fibre component may consist solely of hair or wool, or of any mixtures of the two.

This part of ISO 1833 is not applicable to products in which dyestuffs or finishes contain nitrogen.

NOTE          Because this method differs in principle from the general method based on selective solubility set out in ISO 1833‑1, it is given in a form that is complete in itself.

Oblast zaměření: Zařízení pro naftový průmysl
Komise : CEN/TC 12 (Materials, equipment and offshore structures for petroleum and natural gas industries)
Původce: CEN
K připomínkám do: 9.04.2019
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This document specifies the technical delivery conditions for corrosion-resistant alloy seamless tubular products for casing, tubing, coupling stock and accessory material for two product specification levels:

PSL-1, which is the basis of this document;

PSL-2, which provides additional requirements for a product that is intended to be both corrosion resistant and cracking resistant for the environments and qualification method specified in ISO 15156 (all parts) and Annex G of this document.

At the option of the manufacturer, PSL-2 products can be provided in lieu of PSL-1.

NOTE 1 The corrosion-resistant alloys included in this document are special alloys in accordance with ISO 4948-1 and ISO 4948-2.

NOTE 2 For the purpose of this document, NACE MR0175 is equivalent to ISO 15156 (all parts).

This document is applicable to the following five groups of products:

group 1, which is composed of stainless alloys with a martensitic or martensitic/ferritic structure;

group 2, which is composed of stainless alloys with a ferritic-austenitic structure, such as duplex and super-duplex stainless alloy;

group 3, which is composed of stainless alloys with an austenitic structure (iron base);

group 4, which is composed of nickel-based alloys with an austenitic structure (nickel base);

group 5, which is composed of bar only (Annex F) in age-hardened (AH) nickel-based alloys with austenitic structure.

This document contains no provisions relating to the connection of individual lengths of pipe.

This document contains provisions relating to marking of tubing and casing after threading.

NOTE 3 The connection or joining method can influence the corrosion performance of the materials specified in this document.

NOTE 4 It is necessary to recognize that not all PSL-1 categories and grades can be made cracking resistant in accordance with ISO 15156 (all parts) and are, therefore, not included in PSL-2.

Oblast zaměření: Poplachové systémy
Komise : IEC/TC 79 (Alarm and electronic security systems )
K připomínkám do: 10.04.2019
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This part of IEC 60839 specifies the Open Supervised Device Protocol for electronic access control systems. This includes communication settings, commands and replies between the ACU and the peripheral devices. It also includes a mapping of mandatory and optional requirements as per IEC 60839-11-1:2013 as covered by Annex F.

This standard applies to physical security only. Physical security prevents unauthorized personnel, attackers or accidental intruders from physically accessing a building, room, etc.

This standard does not in any way limit a manufacturer to add other commands to the protocol defined here.

Oblast zaměření: Jaderná energie
Komise : CEN/TC 430 (Nuclear energy, nuclear technologies, and radiological protection)
Původce: CEN
K připomínkám do: 10.04.2019
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This document specifies methods and procedures for characterizing the responses of devices used for the determination of ambient dose equivalent for the evaluation of exposure to cosmic radiation in civilian aircraft. The methods and procedures are intended to be understood as minimum requirements.

Oblast zaměření: Nezařazeno
Komise : CEN/TC 205 (Non-active medical devices)
Původce: CEN
K připomínkám do: 10.04.2019
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This document specifies evaluation procedures applicable to elastomeric parts including coated stoppers used for drug containers and medical devices in order to guarantee the product identity. The physical and chemical test procedures specified in this document permit the determination of the typical characteristics of elastomeric parts, and can serve as a basis for agreements between manufacturer and user regarding the product consistency in subsequent supplies. An appropriate set of tests is selected, depending upon the type of elastomer and its application.

This document does not specify other requirements for elastomeric parts. These are laid down in the relevant product standards.

Oblast zaměření: Koordinace izolace
Komise : IEC/TC 109 (Insulation co-ordination for low-voltage equipment)
K připomínkám do: 17.04.2019
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This part of IEC 60664 deals with insulation coordination for equipment having a rated voltage up to AC 1 000 V or a rated voltage up to DC 1 500 V connected to low-voltage supply systems.

This document applies to frequencies up to 30 kHz.

NOTE 1 Insulation coordination for equipment within low-voltage supply systems with rated frequencies above 30 kHz is given in IEC 60664-4.

NOTE 2 Higher voltages can exist in internal circuits of the equipment.

It applies to equipment for use up to 2 000 m above sea level, and provides guidance for use at higher altitudes.

It provides requirements for technical committees to determine clearances, creepage distances and criteria for solid insulation. It includes methods of electric testing with respect to insulation coordination.

The minimum clearances specified in this document do not apply where ionized gases are present. Special requirements for such situations can be specified at the discretion of the relevant technical committee.

This document does not deal with distances:

through liquid insulation;

through gases other than air;

through compressed air.

This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and lSO/lEC Guide 51. It is not intended for use by manufacturers or certification bodies.

One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.

However, in case of missing specified values for clearances, creepage distances and requirements for solid insulation in the relevant product standards, or even missing standards, this document can be used.